The Impact of Land Use on Hydrological Characteristics and Erosion Rate of Cilutung Watershed with SWAT Model

Nadzira Fadhilah, Eko Kusratmoko, Kuswantoro

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Cimanuk watershed will be affected directly by the dynamics of Cilutung watershed as one of its tributaries. Cimanuk is one of the watershed areas in West Java Province, that is categorized as a critical potential due to erosion and vegetation damage. This study aims to simulate hydrological conditions and erosion rates for each sub-watershed. This research uses several variables: 1) soil type; 2) topography; 3) land use; and 4) climate (temperature, rainfall, solar radiation, wind speed, and relative humidity). Analysis conducted is Hydrology Response Units (HRUs) and statistical analysis. Variable physical characteristics are processed by the overlay method for HRUs analysis. Statistical analysis showed the values of R2 and NSE were 0.48 and 0.32. Based on the calibration and validation results, the values of R2 and NSE are 0.75 and 0.46. This shows a satisfactory and acceptable model. The runoff value tends to show a moderate category between 50-80 in the category of Coefficient of Flow Regime and this is precisely proportional to the rate of erosion. Each sub-watershed shows a high runoff value, tends to produce high erosion rate as well and its reverse. The rate of erosion indicates 175.0 tons/ha / year in the medium category.

Original languageEnglish
Article number03029
JournalE3S Web of Conferences
Volume73
DOIs
Publication statusPublished - 21 Dec 2018
Event3rd International Conference on Energy, Environmental and Information System, ICENIS 2018 - Semarang, Indonesia
Duration: 14 Aug 201815 Aug 2018

Keywords

  • Cilutung
  • Erosion Rate
  • Hydrology
  • Runoff
  • Watershed

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